It's the night before the 2018 US Open women's final between Serena Williams and Naomi Osaka, and coach Sascha Bajin was struggling to sleep.
원문출처 : https://www.cnn.com/2019/08/26/world/us-open-tennis-lookback-spt-intl/index.html
원문출처 : https://www.cnn.com/2019/08/26/world/us-open-tennis-lookback-spt-intl/index.html